Support Board
Date/Time: Fri, 17 Jan 2025 07:37:08 +0000
Post From: Possible to Develop own Trading / Execution - Using Signals from Sierra Chart?
| [2017-12-01 22:36:10] |
| Sporken - Posts: 82 |
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If they have an API then your fastest to way to communicate is using shared memory. The Boost library has a very easy implementation. http://www.boost.org/doc/libs/1_55_0/doc/html/interprocess/sharedmemorybetweenprocesses.html If it's not C++ or has weird restrictions then a slower alternative is to communicate between the processes by writing files to predetermined folders and then using the OS folder watching calls to detect changes to the files. HANDLE m_dwChangeHandles[2]; m_dwChangeHandles[0] = FindFirstChangeNotification( FOLDER_PATH, // directory to watch FALSE, // do not watch subtree FILE_NOTIFY_CHANGE_FILE_NAME); // watch file name changes if (m_dwChangeHandles[0] == INVALID_HANDLE_VALUE) { LOGERROR("FindFirstChangeNotification function failed.\n"); ExitProcess(GetLastError()); } m_folderChanged = true; and later something like // DWORD dwWaitStatus = WaitForMultipleObjects(1, m_dwChangeHandles, FALSE, INFINITE);
DWORD dwWaitStatus = WaitForMultipleObjects(1, m_dwChangeHandles, FALSE, 10); if (dwWaitStatus == WAIT_OBJECT_0) { LOGINFO("Folder changed."); m_folderChanged = true; if (FindNextChangeNotification(m_dwChangeHandles[0]) == FALSE) { LOGERROR("FindNextChangeNotification function failed.\n"); ExitProcess(GetLastError()); } } ps. I'm not Sierra support, I just wanted to be helpful. Date Time Of Last Edit: 2017-12-01 22:37:34
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